Iterative Decoding Performance for Gray Coded QAM Signals with I/Q Phase Unbalance 


Vol. 31,  No. 6, pp. 611-616, Jun.  2006


PDF
  Abstract

In this paper, we propose a practical implementation method of a soft bit decision expression for an R-QAM (Gray coded Rectangular Quadrature Amplitude Modulation) signal based on the Max-Log-MAP algorithm. The parameters of the soft decision expression for the practical implementation can be obtained with simple arithmetic functions associated with some deterministic parameters such as a received value, distances between symbols, and the order of modulation on a signal space. Also, we analyze the performance of an iterative decoding scheme for the QAM signal with I/Q phase unbalance. The unbalance results from the non-ideal characteristic of components such as a phase shifter between in-phase and quadrature paths for quadrature modulator/demodulator.

  Statistics
Cumulative Counts from November, 2022
Multiple requests among the same browser session are counted as one view. If you mouse over a chart, the values of data points will be shown.


  Cite this article

[IEEE Style]

K. S. Kim and S. K. Park, "Iterative Decoding Performance for Gray Coded QAM Signals with I/Q Phase Unbalance," The Journal of Korean Institute of Communications and Information Sciences, vol. 31, no. 6, pp. 611-616, 2006. DOI: .

[ACM Style]

Ki Seol Kim and Sang Kyu Park. 2006. Iterative Decoding Performance for Gray Coded QAM Signals with I/Q Phase Unbalance. The Journal of Korean Institute of Communications and Information Sciences, 31, 6, (2006), 611-616. DOI: .

[KICS Style]

Ki Seol Kim and Sang Kyu Park, "Iterative Decoding Performance for Gray Coded QAM Signals with I/Q Phase Unbalance," The Journal of Korean Institute of Communications and Information Sciences, vol. 31, no. 6, pp. 611-616, 6. 2006.

Search
(IN TITLE, AUTHOR, ABSTRACT,KEYWORDS)

Advanced Search ▼

POPULAR KEYWORDS
(TOP 10 KEYWORDS)

Recent Publications
(LAST 3 YEARS)






pISSN : 1226 - 4717
eISSN : 2287 - 3880